Which of the Following Statements Is True of the NAFTA

Which of the following statements is true of the NAFTA?

A) Consumers in the United States, Canada, and Mexico began to pay higher prices for goods and services after the formation of NAFTA.
B) Critics contend that NAFTA shifted Mexican jobs, particularly blue-collar jobs, to the United States.
C) Environmentalists have appreciated the pact for preventing pollution in Mexico and for helping the country clean up its natural environment.
D) Many economists assert that NAFTA is not a "free trade" pact but a managed trade agreement.